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t-slibgcc-sld revision 1.6 
      1 # Build a shared libgcc library for ELF with symbol versioning
      2 # with the Solaris linker.
      3 
      4 SHLIB_LDFLAGS = -Wl,-h,$(SHLIB_SONAME) -Wl,-z,text -Wl,-z,defs \
      5 	-Wl,-M,$(SHLIB_MAP)
      6 
      7 ifeq ($(enable_shared),yes)
      8 
      9 # Linker mapfile to enforce direct binding to libgcc_s unwinder
     10 # (PR target/59788).
     11 # Emit v2 mapfile syntax if possible, otherwise ld -z guidance complains
     12 # every time the mapfile is used.
     13 libgcc-unwind.map: libgcc-std.ver
     14 ifeq ($(solaris_ld_v2_maps),yes)
     15 	@(echo '$$mapfile_version 2';		\
     16 	echo "SYMBOL_SCOPE {";			\
     17 	for f in `grep _Unwind_ $< | sort`; do	\
     18 	  echo "	$$f { FLAGS = EXTERN DIRECT };"; \
     19 	done;					\
     20 	echo "};" ) > $@
     21 else
     22 	@(echo "{";				\
     23 	for f in `grep _Unwind_ $< | sort`; do	\
     24 	  echo "	$$f = EXTERN DIRECT;";	\
     25 	done;					\
     26 	echo "};" ) > $@
     27 endif
     28 
     29 # Copy libgcc-unwind.map to the place where gcc will look for it at build-time.
     30 install-libgcc-unwind-map-forbuild: libgcc-unwind.map
     31 	dest=$(gcc_objdir)/tmp$$$$-$<; \
     32 	cp $< $$dest; \
     33 	chmod a+r $$dest; \
     34 	sh $(srcdir)/../move-if-change $$dest $(gcc_objdir)/$<
     35 
     36 all: install-libgcc-unwind-map-forbuild
     37 
     38 install-libgcc-unwind-map: libgcc-unwind.map
     39 	$(INSTALL_DATA) $< $(DESTDIR)$(slibdir)
     40 
     41 install: install-libgcc-unwind-map
     42 
     43 endif
     44